diff --git a/wwwroot/api/workspace_tree.dspy b/wwwroot/api/workspace_tree.dspy
index 601ad37..a1774e3 100644
--- a/wwwroot/api/workspace_tree.dspy
+++ b/wwwroot/api/workspace_tree.dspy
@@ -50,11 +50,14 @@ for name in entries:
     if name.startswith('.') or name == '__pycache__':
         continue
     if os.path.isdir(full):
-        # 叶子判定：目录下是否还有子目录（排除隐藏目录）。无子目录 → 叶子(不可展开)
+        # 叶子判定：目录下是否还有「可见」子目录（排除隐藏目录和 __pycache__，与下方扫描一致）。
+        # 无可见子目录 → 叶子(不可展开)
         has_subdir = False
         try:
             for sub in os.listdir(full):
-                if not sub.startswith('.') and os.path.isdir(os.path.join(full, sub)):
+                if sub.startswith('.') or sub == '__pycache__':
+                    continue
+                if os.path.isdir(os.path.join(full, sub)):
                     has_subdir = True
                     break
         except Exception: